Cita APA (7th ed.)
Lipsey, R. G., & Stainer, P. O. (1987). Economics (8th ed.). HarperCollins.
Cita Chicago (17th ed.)
Lipsey, Richard G., i Peter O. Stainer. Economics. 8th ed. New York: HarperCollins, 1987.
Cita MLA (9th ed.)
Lipsey, Richard G., i Peter O. Stainer. Economics. 8th ed. HarperCollins, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.